AD9644
Info : RECOMMENDED FOR NEW DESIGNS
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AD9644

14-Bit, 80 MSPS/155 MSPS, 1.8V Dual, Serial Output A/D Converter

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 6
1ku List Price Starting From $40.13
Features
  • JESD204A coded serial digital outputs
  • SNR = 73.7 dBFS at 70 MHz and 80 MSPS
  • SNR = 71.7 dBFS at 70 MHz and 155 MSPS
  • SFDR = 92 dBc at 70 MHz and 80 MSPS
  • SFDR = 92 dBc at 70 MHz and 155 MSPS
  • Low power: 423 mW at 80 MSPS, 567 mW at 155 MSPS
  • 1.8 V supply operation
  • IF sampling frequencies to 250 MHz
  • Integer 1-to-8 input clock divider
    −148.6 dBFS/Hz input noise at 180 MHz and 80 MSPS
  • -150.3 dBFS/Hz input noise at 180 MHz and 155 MSPS
  • Please see data sheet for additional features

Additional Details
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The AD9644 is a dual, 14-bit, analog-to-digital converter (ADC) with a high speed serial output interface and sampling speeds of either 80 MSPS or 155 MSPS.

The AD9644 is designed to support communications appli-cations where high performance, combined with low cost, small size, and versatility, is desired. The JESD204A high speed serial interface reduces board routing requirements and lowers pin count requirements for the receiving device.

The dual ADC core features a multistage, differential pipelined architecture with integrated output error correction logic. Each ADC features wide bandwidth differential sample-and-hold analog input amplifiers that support a variety of user-selectable input ranges. An integrated voltage reference eases design consid-erations. A duty cycle stabilizer is provided to compensate for variations in the ADC clock duty cycle, allowing the converters to maintain excellent performance.

By default, the ADC output data is routed directly to the two external JESD204A serial output ports. These outputs are at CML voltage levels. Two modes are supported such that output coded data is either sent through one data link or two. (L = 1; F = 4 or L = 2; F = 2). Independent synchronization inputs (DSYNC) are provided for each channel.

Flexible power-down options allow significant power savings, when desired.

Programming for setup and control is accomplished using a 3-wire SPI-compatible serial interface.

The AD9644 is available in a 48-lead LFCSP and is specified over the industrial temperature range of −40°C to +85°C.

This product is protected by a U.S. patent.

Applications
  • Communications
  • Diversity radio systems
  • Multimode digital receivers (3G and 4G)
    GSM, EDGE, W-CDMA, LTE,
    CDMA2000, WiMAX, TD-SCDMA
  • I/Q demodulation systems
  • Smart antenna systems
  • General-purpose software radios
  • Broadband data applications
  • Ultrasound equipment
Product Highlights
  1. An on-chip PLL allows users to provide a single ADC sampling clock; the PLL multiplies the ADC sampling clock to produce the corresponding data rate clock.
  2. The configurable JESD204A output block supports up to 1.6 Gbps per channel data rate when using a dedicated data link per ADC or 3.2 Gbps data rate when using a single shared data link for both ADCs.
  3. Proprietary differential input that maintains excellent SNR performance for input frequencies up to 250 MHz.
  4. Operation from a single 1.8 V power supply.
  5. Standard serial port interface (SPI) that supports various product features and functions, such as data formatting (offset binary, twos complement, or gray coding), enabling the clock DCS, power-down, test modes, voltage reference mode, and serial output configuration.
Part Models 6
1ku List Price Starting From $40.13

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Documentation

Documentation

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Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

PCN

Jun 9, 2021

- 20_0126

Conversion of Select Sizes LFCSP Products from Punched to Sawn and Transfer of Assembly Site to ASE Korea

Sep 13, 2017

- 16_0077

CANCELLED: Conversion of Select 4x4, 5x5, 6x6 and 7x7mm LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to ASE Korea.

AD9644BCPZ-155

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Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Jun 9, 2021

- 20_0126

arrow down

Conversion of Select Sizes LFCSP Products from Punched to Sawn and Transfer of Assembly Site to ASE Korea

Sep 13, 2017

- 16_0077

arrow down

CANCELLED: Conversion of Select 4x4, 5x5, 6x6 and 7x7mm LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to ASE Korea.

AD9644BCPZ-155

PRODUCTION

AD9644BCPZ-80

PRODUCTION

AD9644BCPZRL7-155

PRODUCTION

AD9644BCPZRL7-80

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Software & Part Ecosystem

Software & Part Ecosystem

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Evaluation Kit

Evaluation Kits 1

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EVAL-AD9644

AD9644 Evaluation Board

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EVAL-AD9644

AD9644 Evaluation Board

AD9644 Evaluation Board

Features and Benefits

  • Full featured evaluation board for the AD9644 or AD9641
  • SPI interface for setup and control
  • External clock, on-board oscillator, and AD9524 clocking options
  • Balun/transformer and amplifier input drive options
  • LDO regulator and switching power supply options
  • VisualAnalog® and SPI controller software interfaces

Product Detail

This page contains evaluation board documentation and ordering information for evaluating the AD9644.

Tools & Simulations

Tools & Simulations 6

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